Precipitation and Complexation Methods of Analysis

Question 1

require the formation of relatively
insoluble substances or precipitates
to cause the reactions to go to
completion; solution must be titrated

Answer 1

Volumetric Precipitimetry

Question 2

Cessation of precipitation or the
appearance of turbidity

Answer 2

Determination of End Point

Question 3

used in both direct and residual titration

Answer 3

Ferric Ammonium Sulfate TS (FAS/Ferric Alum)

Question 4

employs standard ammonium
thiocyanate solution

Answer 4

Ferric Ammonium Sulfate

Question 5

thiocyanate reacts with___or___ ions
present to form white precipitate of
silver or mercuric thiocyanate

Answer 5

Hg or Ag

Question 6

thiocyanate reacts with Hg or Ag ions
present to form white precipitate of
______ or ___________

Answer 6

silver or mercuric thiocyanate

Question 7

the thiocyanate ions reacts with
ferric ammonium sulfate to form
a ______________________

Answer 7

red ferric thiocyanate

Question 8

forms a red precipitate of silver chromate which is seen against the background of white silver chloride

Answer 8

Potassium Chromate TS

Question 9

used in the analyses of halides by direct titration with silver nitrate solution

Answer 9

Adsorption Indicators